Rock working implement carrier

ABSTRACT

A rock working implement carrier comprising a boom adapted to be pivotally mounted by one end on a mobile machine, power means to move the boom relative to the machine and hold it in a selected position, a head pivotally mounted on the other end of the boom, a socket on the head, a mast vertically slidable and rotatable in the socket, power means to move the head and the mast and hold the several parts in selected positions, a yoke mounted on the bottom of the mast, an implement carrier swingably mounted in the yoke and means to move and hold the carrier in a selected position, an implement cradle slidably mounted in and projecting from the carrier and a pneumatic-cylinder plunger unit to actuate the cradle.

United States Patent [1 1 McIntosh et al.

[451 July 17, 1973 ROCK WORKING IMPLEMENT CARRIER [73] Assignee: Air Advantage (Australia) Pty.

Limited, New South Wales, Australia [22] Filed: Sept. 9, 1971 [21] Appl. No.: 178,918

3,471,888 10/1969 Grant ct al 173/43 X 3,682,253 8/1972 McIntosh et al .Q 299/70 X Primary Examiner-Ernest R. Purser Attorney-Emory L. Groff and Emory L. Groff, Jr.

[57] ABSTRACT A rock working implement carrier comprising a boom adapted to be pivotally mounted by one end on a mobile machine, power means to move the boom relative to the machine and hold it in a selected position, a head pivotally mounted on the other end of the boom, a socket on the head, a mast vertically slidable and rotatable in the socket, power means to move the head and the mast and hold the several parts in selected positions, a yoke mounted on the bottom of the mast, an implement carrier swingably mounted in the yoke and means to move and hold the carrier in a selected position, an implement cradle slidably mounted in and projecting from the carrier and a pneumatic-cylinder plunger unit to actuate the cradle.

4 Claims, 5 Drawing Figures Patented July 17, 1973 3 Sheets-Sheet 1 Patented July 17, 1973 3,746,104

3 Sheets-Sheet 2 Patented July 17, 1973 3 Sheets-Sheet :5

ROCK WORKING IMPLEMENT CARRIER This invention has been devised to provide a rock working implement carrier for mounting on a mobile machine such as those machines known as front and/or back end loaders.

The carrier including a boom and power operating means can be operatively positioned and secured at a work site within reach of the boom and the carrier and moved about the work site to enable the implement to progressively work on the site.

The invention is described with reference to the annexed drawings wherein:

FIGS. 1 and 2 are side and end elevations respectively of the equipment on a front end loader on which the implement carrier is mounted.

FIGS. 3 and 4 are views similar to FIGS. 1 and 2 of another form of the equipment on a front end loader on which the implement carrier is mounted.

FIG. 5 is a perspective view of the implement carrier and associated parts.

In the drawings the part of the vehicle illustrated is a front end loader l incorporating outrigger jacks 2.

In FIGS. 1 and 2, an articulated boom of parts 3 and 4 is pivoted together as at 5 for movement in a vertical plane. The end 6 of part 3 has a bearing member 7 whereby it is pivotally mounted on the vehicle 1 for swinging movement in a vertical plane. It also has an offset bearing member 8 whereby it is connected to the plunger 9 of a power unit adapted to move part 3 about the bearing member 7 and hold it in'a selected position. The pivot member 5 is fixed in the boom part 4. It incorporates a crank 10 connected to the plunger of a power unit 11 mounted on an arm 12 on the boom part 3 adapted to move boom part 4 in a vertical plane about the pivot member 5 and hold it in a selected position. The outer end of the boom part 4 has a head 13 pivotally mounted thereon as at 14. It is connected to the plunger of a power unit 15 mounted on a bracket 16 on the boom part 3. The power unit is adapted to move the head 13 about its pivot 14 in a vertical plane and hold the head in a selected position.

The head 13 incorporates a cylindrical socket 17 mounted in a bracket 18 slidably mounted on rails 19 in the head and is transversely movable by a power unit 20 and can be held thereby in a selected position.

A mast 21 is vertically slidable and rotatable in the socket 17. Its sliding and rotating movement will be described with reference to FIG. 5.

In FIGS. 3 and 4 the mechanism now to be described is also applied to a front end loader l incorporating outrigger jacks 2 and functions substantially in the same manner as described in FIGS. 1 and 2.

A telescopic boom of base part 22 and fore part 23 is pivoted by part 22 as at 24 to a bracket 25 slidable transversely on rails 26 on the vehicle 1 by a power unit 27 and be held thereby in a selected position. Boom part 22 is movable in a vertical plane by a power unit 28 connected to the part 22 and to a bracket 29 on the vehicle 1. The power unit 28 supports the boom part 22 in a selected position. The boom part 22 can be moved transversely by a power unit 30 connected thereto and to bracket 25. It is supported by the power unit 30 in a selected transverse position. The boom part 23 is moved in and out of the part 22 by a piston-cylinder unit indicated at 31 in the part 22. The outer end of the boom part 23 has a head 32 pivotally mounted thereon as at '33. The part 23 is connected by a power unit 34 to a bracket'35 on the boom part 23. The power unit 34 is adapted to move the head 32 in a vertical plane about its pivot 33 and hold it in a selected position.

The head 32 incorporates a cylindrical socket 36 and a mast 37 is vertically slidable and rotatable in the socket 36. This movement of the mast will be described with reference-to FIG. 5.

Referring to FIG. 5 the mast 37 is slidable and rotatable in the socket 17 (36).It is rotated by a chain 40 from a sprocket on a drive motor 4] and it is held in a selected position by a brake 42. is raised and lowered rock workingimplement carrier 49 is mounted by trunnion journals 50 in the bearings 48. The carrier 49 is moved to and held in operative position relative to the arms-47 by two piston-cylinder power units 51 which are pivotally mounted at their respective ends to brackets 52 on the yoke 46 and brackets 53 on the carrier 49. An implement cradle 54 is slidably mounted in and projects from the carrier 49. It is actuated by a pneumatic cylinder-plunger unit 55 connected at its respective ends to the carrier 49 and the cradle 54. A tool such as a rock pick 56 is mounted in the cradle by conventional means.

The various power units are operatively connected to power generators on the mobile machine which also incorporates control valves for the units.

We claim:

1. A rock working implement carrier comprising a boom pivotally mounted at one end. on a mobile machine, power means to move the boom about its pivot in a vertical plane and hold it in a selected position, a

' head pivotally mounted on the other end of the boom and power means to move the head in a vertical plane about its pivot and hold it in a selected position, a socket transversely slidably mounted on the head, the longitudinal axis of the socket being at right angles to the longitudinal axis of the head, first power means connecting the head and socket to move the socket and hold it in a selected position on the head, a mast slidable and rotatable in the socket, second power means carried by the head and connected to said mast to rotate the mast and hold it in a selected position, third power means connected to-said mast and said socket to raise and lower said mast, a yoke mounted on the bot tom of the mast, an implement carrier swingably mounted in the yoke, fourth power means connecting the yoke and carrier to move and hold the carrier in a selected position, an implement cradle slidably mounted in and projecting from the carrier and a pneumatic-cylinder plunger unit to actuate the cradle.

2. A rock working implement carrier as claimed in claim 1 wherein the'boom is in two parts pivoted together for movement about the pivot in a vertical plane.

'3. A rock working implement carrier as claimed in claim 1 wherein the boom is a telescopic boom of two .parts namely a base partand a fore. part, and including a piston-cylinder unit to move the fore part in and out of the base part.

4. A rock working implement carrier as claimed in comprising a piston-cylinder unitconnectcd to said claim 1 wherein said second power means comprises a mast and a column rotatably supported in said socket motor and sprocket on said head and a chain connectand in which said mast can slide. ing said mast and sprocket, said third power means 

1. A rock working implement carrier comprising a boom pivotally mounted at one end on a mobile machine, power means to move the boom about its pivot in a vertical plane and hold it in a selected position, a head pivotally mounted on the other end of the boom and power means to move the head in a vertical plane about its pivot and hold it in a selected position, a socket transversely slidably mounted on the head, the longitudinal axis of the socket being at right angles to the longitudinal axis of the head, first power means connecting the head and socket to move the socket and hold it in a selected position on the head, a mast slidable and rotatable in the socket, second power means carried by the head and connected to said mast to rotate the mast and hold it in a selected position, third power means connected to said mast and said socket to raise and lower said mast, a yoke mounted on the bottom of the mast, an implement carrier swingably mounted in the yoke, fourth power means connecting the yoke and carrier to move and hold the carrier in a selected position, an implement cradle slidably mounted in and projecting from the carrier and a pneumatic-cylinder plunger unit to actuate the cradle.
 2. A rock working implement carrier as claimed in claim 1 wherein the boom is in two parts pivoted together for movement about the pivot in a vertical plane.
 3. A rock working implement carrier as claimed in claim 1 wherein the boom is a telescopic boom of two parts namely a base part and a fore part, and including a piston-cylinder unit to move the fore part in and out of the base part.
 4. A rock working implement carrier as claimed in claim 1 wherein said second power means comprises a motor and sprocket on said head and a chain connecting said mast and sprocket, said third power means comprising a piston-cylinder unit connected to said mast and a column rotatably supported in said socket and in which said mast can slide. 